William foreman



(N0 ModeL) W. FUHRMAN.

THILL COUPLING.

Patented Apr. 14, 1885.

.Ettarnew UNITED STATES:

PATENT ILLIAM FUHRMAN, on TOMAH, WISCONSIN.

THILL COUPLING.

SPECIFICATION forming part of Letters Patent No. 315,929, dated April 14-, 1885.

Application filed July 3. 1884. (X0 model.)

To 0.1% whom it may concern: v

Be it known that 1, WILLIAM FUHRMAN, a citizen of the United States, residing at Tomah, in the county of Monroe and State of vVisconsin, have invented a new and useful Improvement in Thin-Couplings, of which the following is a specification, reference being had to the accompanying drawings.

My invention relates to thill-couplings; and it has for its object to provide a device of this character whereby the thills may be readily attached or detached, as desired, and one in which the thills will be securely held against accidental detachment or displacement.

A further object of the invention is to pro vide a thill-coupling of cheap, simple, and durable construction, and to provide improved means of connecting the thills with the thill-irons.

\Vith these ends in view the invention consists in the improved construction and combinations of parts hereinafter fully described, and pointed out in the claim.

In the drawings, Figure 1 is a perspective view of a thill-coupling constructed in accordance with my invention. Fig. 2 is a longi tudinal vertical section. Fig. 3 is a section showing one of the thrill-irons in side eleva tion, and Fig. at is a perspective view of parts detached. Fig. 5 is a detail view of one of the draw-irons.

In the accompanying drawings, in which like letters of reference indicate corresponding parts in all the figures, A represents a portion of the axle, which is provided with openings to receive the reduced ends of the draw-irons B, said irons having reduced ends, which are screw-threaded, and which pass through openings in the axle, and are secured in place by means of nuts.

Upon the front ends of the draw-irons B, and upon the inner sides thereof, are provided circular recesses or openings 3), communicating with which are vertical slots 0, extending from the upper or top face of the irons.

0 represents a bushing, which consists of two disks, (1, having a vertical slot, e, which communicates with the vertical slot in the draw-irons. These disks are seated and bear in the recesses of the thill irons. Said disks are connected on their rear sides by means of a strip, which is formedintegral therewith.-

A block of rubber or other elastic material is fitted between the draw-irons and bears against the axle at its rear end, its forward end being hollowed out, as shown, to permit the turning or movement of the thills.

D represents the thill, which is provided at its rear end with two outwardly-extending 6 trunnions, g,proj ecting from each side at right angles to the body portion.

In attaching the above-described coupling to the axle of a vehicle the bushing C is placed between the draw-irons, the disks resting in the recesses on the inner sides of the draw-irons. The ends of the said draw-irons are then inserted through the openings in the axle and secured in place by nuts, as already mentioned. The rubber cushion is then inserted or forced between the draw-irons.

The operation is as follows: The vertical slots of the bushing are turned so that they register with the vertical slots of the drawirons. to the thill-irons, and the trunnions inserted into the vertical slots and the thills lowered, the trunnions fitting in the slots of the bushing, so that the movement of the thills turns the bushing. It will be seen that all possi- .bility of the disengagementof the thills is prevented, and that firm coupling is effected. It will also be seen that by the use of my improvements the thills may be readily attached or detached, and that the construction of the 8 parts is simple and inexpensive.

Having fully described myinvention, what I claim as new, and desire to secure by Letters Patent, is-

In a thill-coupling, the combination, with the draw-irons having reduced screw-threaded ends held in place upon the axle by nuts, as shown, and having communicating vertical and circular recesses on their inner faces, of a bushing consisting of two disks having vertical slots and connected by astrip, as shown, and for the purpose set forth.

In testimony that I claim theforegoing as my own I have hereto affixed my signature in presence of two witnesses.

\VILLIAM FUHRMAN.

\Vitnesses:

AVA D. BENJAMIN, WILLIAM Dunne.

The thill is then raised at right angles 

